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How to change front diff breather valve/filter/vent
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

trailhound wrote:
I've had the pipe from the auto-box to the rad off to make way for my torch. Nothing in sight Shocked . I've found a schematic of where it attached to the diff so should be able to trace it. Think I should run a book on where it ends up or stick to the grand national...


alas , a good idea seeing u have the layout

always the way , when u think a job will only take 10 x mins Rolling with laughter
  
Post #17987301st Apr 2017 9:02 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Pete K wrote:
You need to see the silver inter cooler pipe and then feel round it.


Hands will get dirty tomorrow. Thanks for help. Watch this space and look for my feeble excuses, probably wrong glasses etc.
  
Post #17987411st Apr 2017 9:28 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10335

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

yes your hands should get very dirty lol working on a TD
  
Post #17989272nd Apr 2017 2:35 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

We seek him here, we seek him there, this LR owner seeks him every Censored where!

Still not found the breather. Changed the oil today but ran out of time for a thorough search at either end. There was no pressure inside the box and the oil looked better than expected.

Going in to have a look with an endoscope tomorrow.
  
Post #17989972nd Apr 2017 5:49 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3



There appears to be 2 points where the tube attaches/clips to the body (apart from the ends). Does anyone know where these are?
  
Post #17990542nd Apr 2017 7:35 pm
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Sydney
 


Member Since: 11 Aug 2013
Location: St Neots
Posts: 903

United Kingdom 2006 Discovery 3 TDV6 Base 7 Seat Manual Zermatt SilverDiscovery 3

Just done mine, breather well and truly blocked, luckily no weeping seals...
 De-Tango
V8 Brakes
EGRs blanked
Running boards
3 flash indicators and clock on dash
Blingy grille... 
 
Post #18002315th Apr 2017 4:04 pm
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Sniper1
 


Member Since: 14 Mar 2017
Location: Somewhere near earth
Posts: 75

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Baltic BlueDiscovery 3

Just done mine,

Now bearing in mind i havent driven the vehicle in two days, the audiable release of pressure when i cut the pipe was significant!
Im amazed my seals havent popped!

Does the high pressure cause any other problems with the front diff other than seals?
  
Post #18002335th Apr 2017 4:18 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

i've heard that if the axle breather pipe is blocked u can sometimes get a very slight vibration in the steering wheel

don't know how true that is ???

good u caught it in time in not blowing the seals
  
Post #18004395th Apr 2017 11:18 pm
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Naughty Donkey
 


Member Since: 11 Dec 2016
Location: Glasgow
Posts: 23

Scotland 2006 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

trailhound wrote:


There appears to be 2 points where the tube attaches/clips to the body (apart from the ends). Does anyone know where these are?


I'd be interested to know how difficult it is to replace the entire pipe. Some mechanic or previous owner cable-tied my breather to the radiator and it's melted. Confused

How does the pipe detach from the diff? Pull or Unscrew?

Is it possible to route another pipe through without removing major engine components?

Cheers!
  
Post #18118216th May 2017 9:56 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10335

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Enless you wade through water up to the grill I wouldn't even consider replacing the whole pipe!

Not a nice job!

I think there is a joint which can be accessed in the passenger wheel arch or if it's half way up the rad just cut the end of neatly and fit the breather end
  
Post #18118376th May 2017 11:04 am
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Naughty Donkey
 


Member Since: 11 Dec 2016
Location: Glasgow
Posts: 23

Scotland 2006 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Thanks Pete, good to know.

Do you know what inner and outer diameter the pipe is?
Maybe I could buy the replacement pipe and a coupler, cutting off way after the melting finished and connecting a new pipe there - not sure what size coupler I'll need though.
  
Post #18118676th May 2017 1:05 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10335

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

I don't know the size sorry.
  
Post #18118696th May 2017 1:18 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Pete K wrote:
Enless you wade through water up to the grill I wouldn't even consider replacing the whole pipe!

Not a nice job!

I think there is a joint which can be accessed in the passenger wheel arch or if it's half way up the rad just cut the end of neatly and fit the breather end


Does anyone know where it can be found in the wheel arch?
  
Post #18121517th May 2017 2:46 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10335

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Look at the suspension strut.
Then look to the left side of that, and into the engine bay

You should see a large silver pipe.
The breather joiner is near that
  
Post #18121637th May 2017 3:18 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Thumbs Up
  
Post #18121817th May 2017 4:07 pm
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